Prevention and Control of Pests - Part Two
Choose the one alternative that best completes the statement or answers the question.

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1. Which of the following is INCORRECT about the way mosquitoes are killed by larvicidal oil?
   
   Larvicidal oil makes mosquito larvae unable to hang on the water surface.
   Larvicidal oil makes mosquito larvae unable to expose their siphons or breathing openings to the water surface.
   Larvicidal oil causes mosquito larvae to suffocate.
   Larvicidial oil causes mosquito larvae to remain in their current larval growth stage.
2. Larvicidal oil should not be used on the wigglers of:
   
   Culex bitaeniorhynchus
   Culex tritaeniorhynchus
   Mansonia uniformis
   Toxorhynchites splendens
3. Mosquito breeding can be prevented by:
   
   Anopheles maculatus
   Toxorhynchites splendens
   Ochlerotatus togoi
   Anopheles minimus
4. Removal of foul water can prevent the breeding of:
   a. Anopheles minimus
   b. Ochlerotatus togoi
   c. Culex pipiens quinquefasciatus
   d. Armigeres subalbatus
   
   a, b
   a, c
   a, c & d
   c, d
5. Poisonous baits for cockroaches should be placed:
   
   at where it is dark, warm and moist, near to cracks and crevices.
   at where cockroaches are spotted during daytime.
   far away from cracks and crevices.
   at the resting place of pets.
6. In preventing and controlling roof rats, we should first pay attention to:
   
   ground burrows.
   false ceiling.
   flower beds.
   drains and sewers.
7. In dealing with tick infestation, we may:
   
   use space spraying.
   kill pets within a radius of 100 m.
   install insect electrocuting devices.
   apply residual insecticide.
8. Which of the following environments calls for attention in the prevention and control of trombiculids?
   
   Places with sufficient sunlight
   Places with stagnant foul water
   Weedy grounds
   None of the above
9. After all the wasps in the nest are eliminated, the nest will:
   
   immediately be taken over by squirrels.
   be taken over by bees.
   gradually crumble until it collapses completely.
   be taken over by other wasps in the following year.
10. Anticoagulant is effective in killing:
    
    centipedes.
    spiders.
    rats.
    mites.

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